diff options
Diffstat (limited to 'src/eval.c')
| -rw-r--r-- | src/eval.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/eval.c b/src/eval.c index 2ca337749..d42e1f826 100644 --- a/src/eval.c +++ b/src/eval.c @@ -3526,6 +3526,7 @@ eval7( char_u *start_leader, *end_leader; int ret = OK; char_u *alias; + static int recurse = 0; /* * Initialise variable so that clear_tv() can't mistake this for a @@ -3552,6 +3553,15 @@ eval7( return FAIL; } + // Limit recursion to 1000 levels. At least at 10000 we run out of stack + // and crash. + if (recurse == 1000) + { + semsg(_(e_expression_too_recursive_str), *arg); + return FAIL; + } + ++recurse; + switch (**arg) { /* @@ -3781,6 +3791,8 @@ eval7( */ if (ret == OK && evaluate && end_leader > start_leader) ret = eval7_leader(rettv, FALSE, start_leader, &end_leader); + + --recurse; return ret; } |